KR20080015527A - Coaxial loudspeaker - Google Patents

Abstract

A coaxial loudspeaker without using a supporter is provided to improve the reliability of sound by directly mounting a voice coil of a tweeter to a vibrating body. A coaxial loudspeaker without using a supporter includes a ring type fixing member(2) adapted at an edge such that a magnetic circuit unit and a vibrating body(1) maintains a plane. The magnetic circuit unit includes a magnet(6) in a yoke(8), a pole(5), and a front plate(7). The vibrating body of a thin membrane type is made of plastics, vinyl, and a wood. A voice coil(3') of a woofer is vertically mounted at the ring type fixing member. A voice coil(3) of the tweeter is vertically mounted at a center of the vibrating body. The pole and the magnet are uniformly arranged for voice coil inserting units to be formed between the pole, the magnet, and the yoke. An auxiliary frame(9) is installed on the front plate, so the voice coil of the tweeter positioned at an inner side voice coil inserting unit(12) is supported at the auxiliary frame by an inner side damper. An auxiliary frame is installed on the front plate, so the voice coil of the woofer positioned at an outer side voice coil inserting unit(12') is supported at an outer frame(11) by an outer side damper.

Description

Coaxial loudspeaker without the need for support

1 is an illustration of a conventional coaxial speaker support structure.

2 is an illustration of a coaxial speaker according to the present invention.

* Explanation of symbols for main parts of the drawings

A: Female thread groove B: York

C: Support D: Screw

1: Vibrating body 2: Ring type fixed body

3: Voice coil of the treble speaker 3 ': Voice coil of the treble speaker

4: Inner Damper 4 ': Outer Damper

5: POLE 6: MAGNET

7: front plate 8: yoke

9: auxiliary frame 11: outer frame

12: inner voice coil inserting portion 12 ': outer voice coil inserting portion

13: EDGE

Conventional coaxial speaker is supported by a support for coupling the high-pitched speaker to the low-pitched speaker, as shown in Figure 1, the fastening structure, the upper portion of the yoke (B) that the female thread groove (A) is formed on the top The support (C) is fastened by the screw (D), and the screw hole is formed through the center of the support (C), so that the screw hole communicates with the female thread groove (A) of the yoke (B). Is fastened with a screw (D). Since the support structure of the conventional coaxial speaker is fixed by using a separate screw (D) when assembling the yoke (B) and the support (C), the number of parts and the assembly process is increased, thereby increasing the manufacturing cost and defects. It became a factor. In addition, when the screw (D) is fastened by frictional contact with the yoke (B) member of different hardness, the threaded portion of the female thread groove (A) is worn out, the chip is generated, the chip falls on the speaker to degrade sound quality There was. In addition, the support (C) fastened to the upper yoke (B) by the screw (D) is severely shaken by a small impact from the outside when the screw (D) is not firmly fastened and kept in a loose state, There was a defect that the service life was shortened and the reliability of the product was lowered.

An object of the present invention is to provide a coaxial speaker that does not require a support, unlike the conventional coaxial speaker having a separate support for fastening the high-pitched speaker to the low-tone speaker.

Hereinafter, the technical configuration of the present invention according to the accompanying drawings in detail as follows. As shown in FIG. 2, the present invention provides a ring-shaped fixture at the edge of the vibrating body 1 in the form of a thin film made of a tensile material such as plastic, vinyl, paper, wood, and metal to keep a plane in tension. (2) is attached and the voice coil 3 'of the woofer speaker is mounted vertically to the ring-shaped fixture 2, and the voice coil 3 of the woofer speaker is mounted vertically to the center of the vibrator 1 A voice coil inserting portion 12 into which the vibrating portion and the pole 5 portion at the center of the yoke 8 and the voice coil 3 of the high-pitched speaker are introduced outside the pole 5 portion at the center of the yoke 8, The magnet 6 and the front plate 7 portion fixed to the outer portion of the voice coil inserting portion 12, and the voice coil 3 'insertion portion of the woofer speaker outside the magnet 6 and the front plate 7 portion. Physical contact between the configured magnetic circuit portion and the insertion portion into which the voice coils 3 and 3 ' In order to prevent loosening, the dampers 4 and 4 'are respectively attached to the outside of the voice coils (exactly, the coils wound around the coils) and to support the dampers 4 and 4' attached to the voice coils 3 and 3 '. Edge (13) consisting of an outer frame (11) fixed on the yoke (8) and an auxiliary frame (9) fixed on the front plate (7) and connecting the ring-shaped fixture (2) and the frame (11) ) Is a basic feature of the technical configuration. Voice coils 3, 3 'form a magnetic field by currents transmitted to the voice coils 3, 3', respectively, and these magnetic fields interact with the magnetic fields emitted by the magnetic poles of the magnets 6, 3 ') vibrates up and down and the vibrating body 1 attached thereto is shaken, and this tremor is transmitted as a sound through a medium (air), and as a result, a user can hear amplification sound. Since is formed of a thin film in the tensile state is excellent in elasticity and accordingly the vibration is stable, the amplification sound caused by the vibration also occurs very stable.

The present invention, unlike the conventional coaxial speaker which had a separate support for fastening the high-pitched speaker to the low-pitched speaker, by directly mounting the voice coil (3) of the high-pitched speaker in the center of the vibrating body 1, By providing a coaxial speaker that does not require the support of the conventional coaxial speaker, it is possible to prevent the economic and technical problems caused by the use of the support of the conventional coaxial speaker, thereby improving the reliability of the sound quality.

Claims (1)

Magnetic circuitry consisting of magnets 6 and poles 5 and front plates 7 in yoke 8 and a vibrating body in the form of a thin film of stretchable material such as plastic, vinyl, paper, wood and metal Attach the ring-shaped fixture (2) to the edge so as to keep the plane in tension and mount the voice coil (3 ') of the woofer speaker perpendicular to the ring-shaped fixture (2) and in the center of the vibrating body (1) In a coaxial speaker composed of a vibrator and a frame (9, 11) on which a voice coil (3) of a high pitched speaker is mounted vertically, a voice coil between a pole (5) and a magnet (6) and a yoke (8). The poles 5 and the magnets 6 are evenly arranged so that the insertion parts 12 and 12 'are formed, and the auxiliary voice 9 is installed on the front plate 7 to insert the inner voice coil insertion part 12. The voice coil 3 of the treble loudspeaker located at the auxiliary damper 4 The voice coil 3 'of the woofer speaker positioned at the outer voice coil inserting portion 12' is supported by the frame 9 so as to be supported by the outer frame 11 by the outer damper 4 '. The front end portion of the voice coils 3 and 3 'is joined to the vibrating part provided on the outer frame 11 by the edge 13 so as to support the vibrating body 1 horizontally. No coaxial speakers needed.

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